Saskia Sassen is the Robert S. Lynd Professor of Sociology and Member, The committee on Global Thought, Columbia University (www.columbia.edu/~sjs2/). Her new book is Territory, Authority, Rights: From Medieval to Global Assemblages ( Princeton University Press 2008) and A Sociology of Globalization (Norton 2007). She has now completed for UNESCO a five-year project on sustainable human settlement based on a network of researchers and activists in over 30 countries; it is published as one of the volumes of the Encyclopedia of Life Support Systems (EOLSS) (Oxford, UK: EOLSS Publishers) [http://www.eolss.net ]. Her books are translated into nineteen languages. She has written for The Guardian, The New York Times, OpenDemocracy.net, Le Monde Diplomatique, the International Herald Tribune, Newsweek International, the Financial Times, Huffington.com, among others.